Method for determination of the temperature, mass-averaged over a flow cross-section, of a gas flow in a gas turbine

    公开(公告)号:US20060096292A1

    公开(公告)日:2006-05-11

    申请号:US11269675

    申请日:2005-11-09

    IPC分类号: F02C7/00

    摘要: The invention relates to a method for determination of a temperature, mass-averaged over a flow cross-section, of a gas flow in a gas turbine or the like, particularly during partial load operation of the gas turbine. The invention also relates to a control apparatus, which can be operated using the method according to the invention, for controlling a gas turbine installation. The method according to the invention comprising the steps of the temperature value of the gas flow being detected by a sensor or sensors at at least one position in the gas flow in the area of the flow cross-section, of determination of a correction value for correction of the temperature value for compensation for non-uniformities in the temperature profile of the gas flow across the flow cross-section as a function of at least one operating-point-specific parameter, and of correcting the temperature value, which is recorded by a sensor or sensors, by the correction value.

    Method for determination of the temperature, mass-averaged over a flow cross-section, of a gas flow in a gas turbine
    2.
    发明授权
    Method for determination of the temperature, mass-averaged over a flow cross-section, of a gas flow in a gas turbine 有权
    用于确定燃气轮机中的气体流量的流量横截面上的质量平均值的方法

    公开(公告)号:US07617686B2

    公开(公告)日:2009-11-17

    申请号:US11269675

    申请日:2005-11-09

    IPC分类号: F02C1/00 G01K1/00 G01M15/00

    摘要: The invention relates to a method for determination of a temperature, mass-averaged over a flow cross-section, of a gas flow in a gas turbine or the like, particularly during partial load operation of the gas turbine. The invention also relates to a control apparatus, which can be operated using the method according to the invention, for controlling a gas turbine installation.The method according to the invention comprising the steps of the temperature value of the gas flow being detected by a sensor or sensors at at least one position in the gas flow in the area of the flow cross-section, of determination of a correction value for correction of the temperature value for compensation for non-uniformities in the temperature profile of the gas flow across the flow cross-section as a function of at least one operating-point-specific parameter, and of correcting the temperature value, which is recorded by a sensor or sensors, by the correction value.

    摘要翻译: 本发明涉及一种用于确定燃气轮机等中的气流的流动横截面上的质量平均值的方法,特别是在燃气轮机的部分负载操作期间。 本发明还涉及一种可以使用根据本发明的方法操作的用于控制燃气轮机安装的控制装置。 根据本发明的方法包括以下步骤:由流量截面区域中的气流中的至少一个位置处的传感器或传感器检测气流的温度值,确定校正值的校正值 校正温度值,用于补偿横截面上的气流的温度分布中的不均匀性,作为至少一个操作点特定参数的函数,以及校正由温度值记录的温度值 传感器或传感器,通过校正值。

    Method for operating a gas turbine and also gas turbine for carrying out the method
    3.
    发明授权
    Method for operating a gas turbine and also gas turbine for carrying out the method 有权
    用于操作燃气轮机和用于执行该方法的燃气轮机的方法

    公开(公告)号:US08175786B2

    公开(公告)日:2012-05-08

    申请号:US12342847

    申请日:2008-12-23

    IPC分类号: F02C3/00

    摘要: A method is provided for operating a gas turbine, which especially feeds power to a local isolated power supply network, and which comprises a compressor for compressing combustion air which is drawn in from the environment, a combustion chamber for combusting supplied fuel by the compressed combustion air, a turbine which is driven by the hot gas from the combustion chamber, and a generator, which is driven by the turbine, for generating electric power. With such a method, an improvement of controlling is achieved by one or more parameters of the gas turbine being measured or determined, by the effective thermal output power of the gas turbine being calculated from the measured or determined parameters, and by the calculated effective thermal output power being used for controlling the gas turbine.

    摘要翻译: 提供了一种用于操作燃气轮机的方法,该燃气轮机特别地向局部隔离供电网络供电,并且包括用于压缩从环境吸入的燃烧空气的压缩机,用于通过压缩燃烧燃烧供应燃料的燃烧室 空气,来自燃烧室的热气体驱动的涡轮机,以及由涡轮机驱动的用于发电的发电机。 通过这种方法,通过根据测量或确定的参数计算的燃气轮机的有效热输出功率以及计算的有效热量来测量或确定燃气轮机的一个或多个参数来实现控制的改进 输出功率用于控制燃气轮机。

    GAS TURBINE MODEL AND A METHOD FOR THE MODELING OF A GAS TURBINE
    4.
    发明申请
    GAS TURBINE MODEL AND A METHOD FOR THE MODELING OF A GAS TURBINE 有权
    气体涡轮机模型和气体涡轮机建模方法

    公开(公告)号:US20110224959A1

    公开(公告)日:2011-09-15

    申请号:US13081007

    申请日:2011-04-06

    IPC分类号: G06F17/10 G06G7/64

    CPC分类号: G05B17/02

    摘要: Numerical gas turbine models permit transient modeling with high precision and at the same time numerically efficient processes for modeling a gas turbine. A gas turbine model includes a plurality of sub models. These sub models are either purely dynamic or static, which allows significant simplifications in the numerical solution of the overall model. System parts, which simulate the effects of volumes, metal masses, of actuators, and of measuring systems are regarded as dynamic. The remaining system parts are regarded as static over a time characteristic.

    摘要翻译: 数值燃气轮机模型允许高精度的瞬态建模,同时对燃气轮机进行建模的数值有效的过程。 燃气轮机模型包括多个子模型。 这些子模型是纯动态的或静态的,这允许在整个模型的数值解中显着简化。 模拟体积,金属质量,执行器和测量系统的影响的系统部件被认为是动态的。 剩余的系统部件在时间特性上被视为静态的。

    Method for automatic closed-loop control of one or more combustion temperatures in a gas turbine installation and method for determination of the water content in the working fluid of a gas turbine installation
    5.
    发明授权
    Method for automatic closed-loop control of one or more combustion temperatures in a gas turbine installation and method for determination of the water content in the working fluid of a gas turbine installation 有权
    燃气轮机装置中一个或多个燃烧温度的自动闭环控制方法和用于确定燃气轮机装置的工作流体中的含水量的方法

    公开(公告)号:US09249738B2

    公开(公告)日:2016-02-02

    申请号:US12068337

    申请日:2008-02-05

    IPC分类号: F02C9/28

    摘要: The invention relates to a method for automatic closed-loop control of one or more combustion temperatures in a gas turbine installation, having the following steps: measurement of a plurality of temperatures of the working fluid of the gas turbine installation at various positions in the gas turbine installation, measurement of a plurality of pressures of the working fluid at different positions in the gas turbine installation, determination of the water content of the working fluid flowing through the gas turbine installation, taking account of the measured values, and setting of at least one combustion temperature for the gas turbine installation as a function of the determined water content.

    摘要翻译: 本发明涉及一种用于燃气轮机装置中的一个或多个燃烧温度的自动闭环控制的方法,具有以下步骤:测量燃气轮机装置的工作流体在气体中的各个位置的多个温度 涡轮机安装,测量燃气轮机设备中不同位置处的工作流体的多个压力,确定流经燃气轮机装置的工作流体的含水量,考虑到测量值,并至少设定 作为确定的含水量的函数的燃气轮机安装的一个燃烧温度。

    GAS TURBINE AND METHOD FOR ITS OPERATION
    6.
    发明申请
    GAS TURBINE AND METHOD FOR ITS OPERATION 审中-公开
    气体涡轮及其运行方法

    公开(公告)号:US20110197593A1

    公开(公告)日:2011-08-18

    申请号:US13031918

    申请日:2011-02-22

    IPC分类号: F02C9/00

    摘要: A gas turbine and method are disclosed by which the gas turbine can be safely operated at nominal speed with reduced margin to a surge limit of a compressor. The gas turbine, via a directly driven generator which generates alternating current with an operating frequency and which is connected in a frequency-coupled manner to an electricity grid, can deliver electric power to this grid. In the case of an underfrequency event the compressor of the gas turbine is unloaded by controlled, fast closing of the variable compressor guide vanes (VGV) and as a result maintains a sufficient margin to the surge limit of the compressor.

    摘要翻译: 公开了一种燃气轮机和方法,通过该燃气轮机和方法,燃气轮机可以以标称速度安全地运行,同时减小了压缩机喘振极限的余量。 燃气轮机通过直接驱动的发电机,其产生具有工作频率的交流电并以频率耦合的方式连接到电网,可以向该电网输送电力。 在低频情况下,燃气轮机的压缩机通过控制,快速关闭可变压缩机导叶(VGV)而卸载,因此对压缩机的喘振极限保持足够的余量。

    Gas turbine plant and method of operation
    7.
    发明授权
    Gas turbine plant and method of operation 有权
    燃气轮机厂和操作方法

    公开(公告)号:US07950240B2

    公开(公告)日:2011-05-31

    申请号:US11689002

    申请日:2007-03-21

    IPC分类号: F02C3/30

    摘要: In a method for operating a gas turbine plant (10) with a compressor (11) for the compression of combustion air sucked in from the surroundings, with a combustion chamber (15) for generating hot gas by the combustion of a fuel with compressed combustion air, and with a turbine (12), in which the hot gas from the combustion chamber (15) is expanded so as to perform work, temperatures and pressures are measured at various points in the gas turbine plant (10), and a combustion chamber exit temperature is derived from the measured temperatures and pressures and used for controlling the gas turbine plant (10). Improved temperature determination is achieved in that the composition of the gas, in particular the water content in the exhaust gas of the turbine (12), is determined, and in that the specific water content in the exhaust gas of the turbine (12) is taken into account in deriving the combustion chamber exit temperature.

    摘要翻译: 在具有用于压缩从周围吸入的燃烧空气的压缩机(11)的燃气轮机设备(10)的方法中,具有用于通过燃烧具有压缩燃烧的燃料产生热气体的燃烧室(15) 空气和涡轮机(12),其中来自燃烧室(15)的热气体膨胀以在燃气轮机设备(10)中的各个点处测量工作温度和压力,并且燃烧 室出口温度来自测量的温度和压力,并用于控制燃气轮机设备(10)。 实现了改进的温度测定,其中确定了气体的组成,特别是涡轮机(12)的废气中的水含量,并且涡轮机(12)的废气中的特定含水量为 在推导燃烧室出口温度时考虑到。

    Gas turbine and method for its operation

    公开(公告)号:US10156242B2

    公开(公告)日:2018-12-18

    申请号:US13031918

    申请日:2011-02-22

    摘要: A gas turbine and method are disclosed by which the gas turbine can be safely operated at nominal speed with reduced margin to a surge limit of a compressor. The gas turbine, via a directly driven generator which generates alternating current with an operating frequency and which is connected in a frequency-coupled manner to an electricity grid, can deliver electric power to this grid. In the case of an underfrequency event the compressor of the gas turbine is unloaded by controlled, fast closing of the variable compressor guide vanes (VGV) and as a result maintains a sufficient margin to the surge limit of the compressor.

    Method for cooling a gas turbine plant and gas turbine plant for implementing the method
    9.
    发明授权
    Method for cooling a gas turbine plant and gas turbine plant for implementing the method 有权
    用于冷却燃气轮机设备和燃气轮机设备以实施该方法的方法

    公开(公告)号:US09145774B2

    公开(公告)日:2015-09-29

    申请号:US13526324

    申请日:2012-06-18

    IPC分类号: F01D5/18 F02C7/18

    摘要: A method is provided for operating a gas turbine plant, in which compressed air is extracted from a compressor and for cooling is directed in an internal cooling passage through thermally loaded components to the combustion chamber and/or to the turbine, then re-cooled, and added to the compressor main flow in the compressor. At least a portion of the recirculated air is supersaturated, or partially saturated, with drops of water during or before recirculation into the compressor and a cooling mist is created. A gas turbine plant is provided with a closed cooling circuit which, for implementing the method, includes an injection arrangement for introducing water into the recirculated cooling air.

    摘要翻译: 提供了一种用于操作燃气轮机设备的方法,其中压缩空气从压缩机中抽出,并且用于冷却的内部冷却通道通过热负荷组件被引导到燃烧室和/或涡轮机,然后再冷却, 并添加到压缩机中的压缩机主流。 再循环空气的至少一部分在再循环进入压缩机期间或之后,在一滴水中过饱和或部分饱和,并产生冷却雾。 燃气轮机设置有封闭的冷却回路,用于实施该方法包括用于将水引入再循环的冷却空气中的喷射装置。

    Gas turbine model and a method for the modeling of a gas turbine
    10.
    发明授权
    Gas turbine model and a method for the modeling of a gas turbine 有权
    燃气轮机模型和燃气轮机建模方法

    公开(公告)号:US08914265B2

    公开(公告)日:2014-12-16

    申请号:US13081007

    申请日:2011-04-06

    IPC分类号: G06G7/48 G05B17/02

    CPC分类号: G05B17/02

    摘要: Numerical gas turbine models permit transient modeling with high precision and at the same time numerically efficient processes for modeling a gas turbine. A gas turbine model includes a plurality of sub models. These sub models are either purely dynamic or static, which allows significant simplifications in the numerical solution of the overall model. System parts, which simulate the effects of volumes, metal masses, of actuators, and of measuring systems are regarded as dynamic. The remaining system parts are regarded as static over a time characteristic.

    摘要翻译: 数值燃气轮机模型允许高精度的瞬态建模,同时对燃气轮机进行建模的数值有效的过程。 燃气轮机模型包括多个子模型。 这些子模型是纯动态的或静态的,这允许在整个模型的数值解中显着简化。 模拟体积,金属质量,执行器和测量系统的影响的系统部件被认为是动态的。 剩余的系统部件在时间特性上被视为静态的。